Question # 1

Which expands on heating?

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Water

Steel

Copper

All are true

Specific heat of glass

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780 Jkg^-1K^-1

800 Jkg^-1K^-1

840 Jkg^-1K^-1

880 Jkg^-1K^-1

Which machine is used to find acceleration due to gravity?

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Centrifuge

Atwood machine

Hydraulic machine

Washing machine

The kinetic energy of a body of mass 2 kg is 25 J. Its speed is:

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5 ms^-1

12.5 ms^-1

25 ms^-1

50 ms^-1

Which of the following is an insulator?

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Wood

Glass

Plastic

Steel

It is easy to turn a steering wheel by applying a:

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Torque

Force

Couple

Momentum

Centre of gravity of uniform square is:

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Intersection of diagonals

Point of intersection of medians

At centre

None of these

Dogs sweat through:

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Tongue

Legs

Skin

Glands

The acceleration of a body moving the uniform velocity is.

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Uniform

Zero

Negative

Variable

Clinical thermometer is used by:

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Astronomers

Doctors

Scientist

Chemists

The value of g is maximum at:

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Mountains

Maximum height

Surface of earth

At 2R

The formula of y component of force ' F ' is:

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F cos 𝜽

F Sin 𝜽

F tan 𝜽

Tan^-1 𝜽

Hydraulic press is a machine which works on

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Hook's law

Archimedes principle

Pascal's law

Boyle's law

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